While the A. I.'s German panzers can move straight on top of the rail, the player's American Shermans cannot. Even the destination purple / blue spot is on the middle of the rail, the Shermans still go astray, say to the grassland, then move diagonally to the spot. Any solutions? Thanks very much.

Can you give an example, perhaps with a screen shot? There is no difference in how these two tanks are treated by the path finding in the game, or their ability to move / not move onto rail road lines.

‘m sorry for my late reply. The American tank had been placed on the railway before the “move” order issued. However, instead of going straight ahead to the blue spot, it went off to the grassland, then take a diagonally route towards the blue spot. Hope the attached photo express the weird phenomenon clear. Many thanks.